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1987 Bureau of Mines authorization and oversight
United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials.1986
Páginas: 80
Género: Appropriations and expenditures
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![[William Wheeler Hubbell, authorized to apply for patents.]](/_next/image?url=https%3A%2F%2Fcovers.openlibrary.org%2Fb%2Fid%2F10200621-M.jpg&w=3840&q=75)
